KodingRouter: getDefaultRoute: use /Activity if group has no stack template
KodingRouter: getDefaultRoute: use /Activity if group has no stack template

For koding default route still is /IDE always, for others if there is stack
template defined for the active group, it goes again to /IDE but if there is no
stack template defined for the current group it goes /Activity directly.

This doesn't effect the routes direct accesses.

koding/koding,kwagdy/koding-1,acbodine/koding,usirin/koding,szkl/koding,mertaytore/koding,mertaytore/koding,drewsetski/koding,usirin/koding,andrewjcasal/koding,acbodine/koding,kwagdy/koding-1,gokmen/koding,gokmen/koding,gokmen/koding,mertaytore/koding,usirin/koding,szkl/koding,acbodine/koding,drewsetski/koding,koding/koding,andrewjcasal/koding,gokmen/koding,sinan/koding,rjeczalik/koding,acbodine/koding,sinan/koding,koding/koding,cihangir/koding,kwagdy/koding-1,jack89129/koding,rjeczalik/koding,andrewjcasal/koding,sinan/koding,cihangir/koding,cihangir/koding,acbodine/koding,alex-ionochkin/koding,andrewjcasal/koding,sinan/koding,gokmen/koding,sinan/koding,usirin/koding,alex-ionochkin/koding,sinan/koding,mertaytore/koding,mertaytore/koding,alex-ionochkin/koding,acbodine/koding,szkl/koding,szkl/koding,koding/koding,koding/koding,koding/koding,sinan/koding,rjeczalik/koding,gokmen/koding,szkl/koding,drewsetski/koding,drewsetski/koding,szkl/koding,alex-ionochkin/koding,kwagdy/koding-1,alex-ionochkin/koding,jack89129/koding,cihangir/koding,rjeczalik/koding,rjeczalik/koding,kwagdy/koding-1,andrewjcasal/koding,jack89129/koding,cihangir/koding,usirin/koding,rjeczalik/koding,kwagdy/koding-1,sinan/koding,drewsetski/koding,usirin/koding,alex-ionochkin/koding,mertaytore/koding,alex-ionochkin/koding,szkl/koding,kwagdy/koding-1,mertaytore/koding,jack89129/koding,andrewjcasal/koding,gokmen/koding,acbodine/koding,usirin/koding,cihangir/koding,jack89129/koding,drewsetski/koding,koding/koding,szkl/koding,cihangir/koding,jack89129/koding,jack89129/koding,kwagdy/koding-1,usirin/koding,rjeczalik/koding,andrewjcasal/koding,andrewjcasal/koding,gokmen/koding,cihangir/koding,drewsetski/koding,acbodine/koding,rjeczalik/koding,koding/koding,jack89129/koding,mertaytore/koding,drewsetski/koding,alex-ionochkin/koding